Holder for edge-setting tools



a H t m W a. M N 2 m IN m i I an i A$Wy w n cw J. E. FOSS.

HOLDER FOR EDGE SETTING TOOLS.

APPLICATION FILED NOV. 17. I920.

Patented June 13, 1922.

lAJLQAQGB JOHN E. FOSS, 0F JAMAICA PLAIN, MASSACHUSETTS.

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Application filed November 17, 1920.

T 0 all whom it may concern:

Be it known that I, JoHN E. Foss, a citizen of the United States, residing at Jamaica Plain, in the county of Suffolk and State of Massachusetts, have invented an Improvement in a Holder for Edge-Setting Tools, of which the following is a specification.

This invention relates to burnishing machines adapted to burnish or set the edge of the soles of shoes, and has more particular reference to a holder adapted removably to hold and support the edge setting tools.

It has been common practice to mount the tools in pairs removably in an oscillatory holder which also is angularly movable whereby to ,present one or the other tool into work-engaging position. The tool is formed with an axial hole or recess in its shank and is removably received on a post extended from the holder and retained thereon by a spring catch. The holder with the tools thereon is adapted to vibrate rapidly and the edge of the shoes is more or less forcibly held against the vibrating tools. As a consequence, wear rapidly occurs between the'post and the tool and the recess in the tool soon becomes so greatly worn that the tool has an independent erratic motion on the post which is set up by the vibrations of the holder. lVhen the tool is in such a condition, it is diflicult to cause the edge of the sole of the shoe properly to engage the tool and considerable time is lost in obtaining proper engagement. The edge also often becomes scored and the upper out. When the tool becomes excessively worn, it must be replaced by a new tool; and as the tool becomes rapidly worn, the expense of tool replacements is relatively great.

An object of this invention is the provision of a tool holder for edge-setting tools having a relatively great tool supporting surface as contrasted with the present types of tool holders, and so disposed as to support the tool in a more effective manner whereby wear on that part of the tool' en gaged by the holder is greatly reduced and the effective life of the tool consequently is greatly increased.

The tool holder, constructed in accordance with my invention, may have the usual tool-supporting post extended from it and in addition may have a recess or socket in the center of which said post is arranged. The tool is adapted to fit within said recess Specification of Letters Patent. Pgttqgntgd June 13 192% Serial No. 424,778.

or socket over said post and the post is arranged to support the tool internally and the walls of the socket externally. The supporting area of the recess walls is relatively great as compared with the supporting sur-- face of the post, and more advantageously disposed, whereby the tool becomes but slowly worn and its effective life is consequently greatly increased.

Fig. 1 is a perspective detail of a burnishing machine with a tool holder embodying my invention applied thereto.

Fig. 2 is 'a front elevation of a tool holder embodying my invention.

Fig. 3 is a side elevation of Fig. 2.

Fig. 4. is a section along line 44 of Fig. 8.

Fig. 5 is a section along line 55 of Fig. 4;.

Fig. 6 is a detail in perspective of a tool supporting boss and post of the holder.

Fig. 7 is a front elevation of a modified form of tool holder embodying my invention.

Fig. 8 is a sectional view of the holder of Fig. 7.

Fig. 9 is a sectional detail of a tool holder having a separate tool engaging and supporting element embodying my invention.

As here shown, the tool holder embodying my invention and illustrated in Figs. 2, 3 and 4 is adapted to be removably and rotatably received in the vibratory tool head 10 of the edge setting machine 11 illustrated in Fig. 1; and said machine is of more or less common construction.

The tool holder illustrated in the abovenamed figures comprises the head 12 having the tubular member 13 threaded therein and extended upwardly from the middle of its top face and the rod 14 axially disposed within said tubular member and fixed thereto and having its threaded, knob-receiving upper end 14* suitably extended above the top end of said tubular member.

The tool-holder, so far described, is of more or less common construction.

In accordance with my invention, I form the head 12 with the two bosses 16, preferably integral with the head and outwardly and downwardly inclined from its lower face. Said bosses are formed with the internal recesses 17 in which the shank 18 of the edge-setting tools 19 are removably and snugly received; and the side walls of the recesses serve to support the tools. Holes are drilled in the head in alignment with the axes of said recesses and tool-supporting posts 20 are driven therein and may be positively fixed in the head by the pins 21 or other suitable means. Said posts preferably extend beyond the bosses 16andare adapted to be received in the internal. recesses 22 in the shanks of the edge setting tools and serve to support them internally. The edge setting tools are restrained from rotation in the tool holder by the pins 23 disposed in the lower portion of said recesses '17 f the bosseslG; and said pins are-received in the slots 24- in the lower edges of the shanks of the tools. A slight amount ofangular movement of the tools is or may be desirable and for this purpose the slots 2-1 maybe made suitably larger than the pins 23 received therein. Said pins 23 may be secured in position in any suitable manner and as here shown said pins are received inpin-recesses in the posts 20 before said posts are-inserted in the head of the tool holder. i i hen in positionthe side walls of the bosses 16 serve to retain said pins in pl-ace.

The edge-setting tools are removablyretained in position in the holder by the sprii'ig-strips 25 wl1ich are secured bythe screws 26 to the end faces of the head 12. Said strips are formed with the refiexed end portions 25*which are received within correspondingly shaped transverse notches in the shanks of the tools as is more or'less common practice. The side wallsofsaid bosses 16 are cut away to form the longitudinal slots 2G in which "said springs 25' are received.

Figs. 7 and 8 illustrate another type of tool holder incorporating myinvention in a manner similar to that above set forth.

In lieu of forming the bosses 16 as an integral part of' the tool holder, that portion thereof which engages the tool may be a separate element and may be removably carried by the head 12 whereby it may be replaced when it becomesworn, as after long use.

In Fig. 9 the tool engaging element is illustrated as comprising the boss 16 and the post 20 as an integral member which may be fixed to the head of the tool holder by the upper portion of said post. This construction is particularly desirable in applying my invention to existing tool holders having the usual construction.

lVith the construction herein setforth. it will be comprehended that by the provision of the boss 16 by which the tool is externally engaged a greatly enlarged bearing surface is provided over that providedby the'post 2O alone and, as a consequence,'wear of the tool will be greatly reduced, so that the tool will be in condition foreflicientservice for a greatly increased period.

I claim: 1. A vibratory holder for edge setting tools having -shanks and axial recesses therein, saidholder having attaching means to secure the holder to a vibratory support, angularly-inclined bosses extended from the holder 011 opposite sides of the attaching means, said bosses having angularly-inclined recesses therein arranged to conform to and snugly receive and engage the peripheries of the shanks and support the tools in position in the holder against lateral displacement, axially-disposed posts fixed to said holder and rising from the bottoms of said recesses 'arran'ged to enter the axial recesses in the tools and engage the tools internally and support them laterally, pins carried by the holder extended into said recesses'near the bottoms thereof arranged to engage the tools and restrict angular movement thereof, said bosses having slots formed in the outer faces thereof extended into said recesses, and springs fixed to said bosses in said slots having end-portions arranged to engagethe tools and retain them removably in the recesses and on said posts.

as vibratory holder for edge setting tools having shanks and axial recesses in the shanks, said holder having attaching means to secure the holder to a vibratory support, members having an angularlydir clined recess disposed on opposite sides of the attaching means arranged to conform and snugly receive and surround and en gage the peripheries of the shanks and support the tools in position in the holder against lateral displacement, axially-disposed posts fixed to said holder and rising from the bottoms of the recesses aranged to enter the axial recesses in the tools and engage'the tools internally and support them laterally, pins carried by the holder exten'de d'into said recesses near the bottom thereof arranged to engage the tools and restrict angular m'ovement'thereof, said holder having slots forme'd'in'the outer face thereof extended into said recesses, and springs fixed tosaid holderin said slots having end-portions arranged to engage the tools and retain them removably in the recesses and on said posts.

A vibratory holder "for edge setting tools haviii'g shanks and axial recesses in the shanks, said holder having attaching meansto secure the holderto a vibratory support, angularly-inclined recesses disposed on opposite sides of the attaching means arranged to conform to'and receive and surround and engage the peripheries of the shanks and support the tools in position in the holder against lateral displacement, axially-disposed posts fixed to the holder and rising from the bottoms of the recesses arranged to enter the axialrecesses in the tools, and engage the tools internally and support them laterally, and pins carried by the holder extended into said recesses near the bottoms thereof arranged to engage the tools and restrict angular movement thereof.

a. A vibratory holder for edge setting tools having a shank and an axial recess in the shank, said holder having a recess arranged to conform to and receive and surround and engage the periphery of the shank and support the tool in position in the holder against lateral displacement, a post fixed to the holder and rising from the bottom of the recess arranged to enter the recess in the shank and engage the tool internally and also support it laterally, a pin carried by the holder extended in said recess at the lower portion thereof ar ranged to engage and restrict angular movement of the tool, said holder having a slot extended through it into said recess and a spring received in said slot having an end-portion arranged to enter the recess.

5. A vibratory holder for edge setting tools having a shank and an axial recesll in the shank, said holder having a recess arranged to conform to and receive and surround and engage the periphery of the shank and support the tool in position in the holder against lateral displacement, a post fixed to the holder and rising from the bottom of the recess arranged to enter the recess in the shank and engage the tool internally and also support it laterally, and a pin carried by the holder extended in said recess at the lower portion thereof arranged to engage and restrict angular movement of the tool.

6. A vibratory holder for edge setting tools having a shank and an axial recess in the shank, said holder having a recess arranged to conform to and receive and surround and engage the periphery of the shank and support the tool in position in the holder against axial displacement and a post fixed to the holder and rising from the bottom of the recess arranged to enter the recess in the shank and engage the tool internally and also support it in position, said holder having a slot extended from a face thereof into said recess, and a spring secured to said holder in said slot having an end-portion adapted to enter the recess.

7. A vibratory holder for edge setting tools having a shank and an axial recess in the shank, said holder having a recess arranged to conform to and receive and surround and engage the periphery of the shank and support the tool in position in the holder against lateral displacement, a post fixed to the holder and rising from the bottom of the recess arranged to enter the recess in the shank and engage the tool internally and also support it in position and a spring carried externally by said holder having an end-portion arranged to enter said recess.

8. A vibratory holder for edge setting tools having a shank and an axial recess in the shank, said holder having a recess arranged to conform to and receive and surround and engage the periphery of the shank and support the tool in position in the holder against lateral displacement, and a post fixed to the holder and rising from the bottom of the recess arranged to enter the recess in the shank and engage the tool internally and also support it in position.

In testimony whereof, I have signed my name to this specification.

JOHN E. FOSS. 

